2. Stretch the back of thighs and buttocks: bend your knees 90 degrees on your front legs, raise your heels, and move your hips forward, and keep breathing for 8 to 10 times.
3. Hip and thigh front stretching: the front leg bends 90 degrees, the rear knee touches the ground, the hip keeps straight forward, and the breath is kept for 8 to 10 times.
4. Stretch the back of the thigh: straighten the front leg, hook your feet backwards, fold your body back and forth, keep your hips directly above your knees, and take 8 to 10 breaths.
5. Stretch the back of the thigh: lift the knee with the hind leg, keep the front leg straight, fold the body, step on the ground with the heel behind, buckle slightly, and keep breathing for 8 to 10 times.
6. Stretching the back of thigh: do dog posture, then put your feet together, grab the outside of your right foot with your left hand, and keep breathing for 8 to 10 times.
7. Stretching the back of thigh: from standing, fold forward and downward, hold your toes with both hands, keep your back stretched, keep your arms straight, and keep breathing for 8 to 10 times.
8. Stretching the back of thigh: Sit up straight, with your legs straight and hooked, grab your big toe with your hands forward, keep your back stretched, and keep breathing for 8 to 10 times.